I tried that with no luck. I'm starting to think that the solenoid is fried or i'm just not wiring it right. Was thinking to just connect A to 12 volts. Then connect D to ground and put a toggle on each wire. To lock it flip the ground then flip the power. Reverse to unlock. My latest discovered problem is it doesn't shift into 4th. I just started to take the car on short highway drives while i'm testing and noticed it. Gunna try adjusting TV cable tomorrow and securing my shifter cable to the trans better. (clip fell off months ago, its help on by zip ties)